Journal
ENERGY
Volume 173, Issue -, Pages 569-585Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.energy.2019.02.064
Keywords
Airborne Wind Energy; Flight trajectory optimization; Differential algebraic equations
Categories
Funding
- EU via FP7-ITN-TEMPO [607 957]
- EU via H2020-ITN-AWESCO [642 682]
- Federal Ministry for Economic Affairs and Energy (BMWi) via eco4wind
- DFG via Research Unit FOR 2401
- State Ministry of Baden-Wuerttemberg for Sciences, Research and Arts [Az: 22-7533.-30-20/9/3]
- Federal Ministry for Economic Affairs and Energy (BMWi) via DyConPV
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This paper presents an Optimal Control Problem (OCP) tailored to assess the system performance of a rigid wing Airborne Wind Energy (AWE) pumping system prior to real flight tests. The proposed method is validated against experimental data obtained using a small prototype designed by the Dutch company Ampyx Power B.V. Within such analysis, it is shown that a non-optimized closed-loop flight control system can generate power to within 10% of the open-loop optimal flight trajectories. Additionally, results demonstrate that the system efficiency does not depend on the trajectory topology, though a significant change in terms of trajectory shape is observed for different wind speeds as a result of trajectory constraints. (C) 2019 Elsevier Ltd. All rights reserved.
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